I played some Uncharted: Golden Abyss, just the first chapter, and I'm going to end up replaying it because of the hidden treasures. I'm actually going to try to collect everything this time, and will probably end up using a collectible guide for it. I haven't done that in years. Apart from that... it's pretty awesome! The touch controls for melee fighting are stupid but most of the other stuff seems great. Aiming by tilting the Vita is superb.
Sine Mora is amazing. Reminds me of Zero Wing but of course, it's modern. Cool Japanese voiceover that I don't understand at all. I like that I can take some hits and don't get a game over, I just lose some time on the timer. Pretty good game, nice graphics on all of these. It's a good contrast from the cartoonier graphics of the 3DS.
I actually passed on Jeanne D'Arc because I saw that it was one of those isometric tile-based games. I have played those in the past, like Front Mission 4 and of course FF Tactics and FFT Advanced... but I never really liked it. I played them because I got them, as a kid (meaning my mom bought them for me) and I would always play any games I got just out of guilt. I actually remember really enjoying both of those games but it's hard to get past the psychological and emotional trauma of playing isometric strategy games. I may take your advice and check it out though, especially since I've got a $10 credit on PSN..
What kind of RPG is Persona 4? It's not a card-based battle game or something is it?